EP 2169558 B1 20150107 - MEMORY REFRESH DEVICE AND MEMORY REFRESH METHOD
Title (en)
MEMORY REFRESH DEVICE AND MEMORY REFRESH METHOD
Title (de)
SPEICHERAUFFRISCHEINRICHTUNG UND SPEICHERAUFFRISCHVERFAHREN
Title (fr)
DISPOSITIF DE RAFRAÎCHISSEMENT DE MÉMOIRE ET PROCÉDÉ DE RAFRAÎCHISSEMENT DE MÉMOIRE
Publication
Application
Priority
JP 2007064199 W 20070718
Abstract (en)
[origin: EP2169558A1] The optimization of a refresh cycle is carried out in harmony with the error occurrence state in the memory with the presence of a normal patrol controlling section (24) controlling a normal patrol operation that patrols the memory (11); an additional patrol controlling section (25) controlling an additional patrol operation that patrols, if a first error in the memory (11) is detected during the normal patrol operation, an error occurring area in which the first error has occurred and which is included in the memory (11); a measuring section (15) measuring, if a second error is detected in the error occurring area during the additional patrol operation, an error frequency representing information of error in the error occurring area; and a refresh cycle adjusting section (26) adjusting the refresh cycle in accordance with the error frequency measured by the measuring section (15)
IPC 8 full level
G06F 11/10 (2006.01); G11C 11/406 (2006.01); G11C 29/52 (2006.01)
CPC (source: EP US)
G06F 11/106 (2013.01 - EP US); G11C 11/406 (2013.01 - EP US); G11C 29/028 (2013.01 - EP US); G11C 29/50016 (2013.01 - EP US); G11C 29/52 (2013.01 - EP US); G11C 11/401 (2013.01 - EP US); G11C 2029/0409 (2013.01 - EP US); G11C 2211/4061 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2169558 A1 20100331; EP 2169558 A4 20100915; EP 2169558 B1 20150107; CN 101796497 A 20100804; CN 101796497 B 20120321; JP 5012898 B2 20120829; JP WO2009011052 A1 20100909; KR 101043013 B1 20110621; KR 20100018082 A 20100216; US 2010106901 A1 20100429; US 8549366 B2 20131001; WO 2009011052 A1 20090122
DOCDB simple family (application)
EP 07790953 A 20070718; CN 200780053809 A 20070718; JP 2007064199 W 20070718; JP 2009523490 A 20070718; KR 20107001001 A 20070718; US 68305910 A 20100106